vvvf 中文意思是什麼

vvvf 解釋
供應三菱全系列變頻器及配件
  1. Variable voltage and variable frequency ( vvvf ) inverter control technology applied by ford passenger lift extends the utilization from the elevators drive system to the door machine system, plus its matching none link lever synchronous belt type door machine structure, it results in the more smooth sensitive and secure door open and shut. the passengers feel the doubled warmth in entering into and exiting the elevators

    福德乘客電梯所應用的變壓變頻（ vvvf ）逆變器控制技術，從電梯驅動系統延伸運用到了門機系統中，加上與之相匹配的無連桿同步帶式門機結構，使電梯門的開啟和關閉更加平穩、靈敏和安全，令進出電梯的乘客倍感親切。
  2. Win600 freight lift is provided with the safe and reliable microcomputer control or plc control. the traction is equipped with vvvf wector to make the start, acceleation, deceleration and stop of lift stable and confortable. zero - speed braking stop is uesd to greatly increase the leveling accuracy, reduce te noise and vibration of operation and save energy over30 % than traditional ac double - speed traction

    Win600系列載貨電梯採用微機活plc控制，安全可靠，拖動系統採用vvvf矢量控制使電梯的啟動加減速停車都十分平穩舒適，停車時實行零速控制動停靠，大大提高平層精度，降低運行噪音和振動，並且節能環保，比傳統的交
  3. Selection of vvvf inverter to control the hair shaft speed, not pushing buttons, the same can remove hair debris and floating hair, suction available functions, all concentrated gross litter, facilitate the process, to improve the working environment and to reduce the labor intensity, improve efficiency and reduce production costs

    選用變頻調速器來控制毛軸的速度，不需要按按鈕等，同樣可以進行清除毛屑及浮毛，備有吸風功能，將所有毛屑集中，方便處理，改善工作環境，減輕工人的勞動強度，提高工作效率，降低生產成本。
  4. Win600 automobile lift has the same control system as freight lift, i. e. micromputer control or plc control, and the same tracyion system as freight lift, i. e. vvvf vector control, to make it safe, reliable, stable, comfortable, energy - saving and of high leveling precision as freight lift. the car is equipped with four or six symmetric guide rails, to solve the problem of wobbling caused by the unbalance load of car and reduce the noise of operation, the door is equipped with reliabe optical screen protction or infrared electronic protecyion, to ensure the safe entry and exit of automobile. the double - controller design inside the car gives convenience to the operation of automobile driver

    Win600系列汽車電梯的控制系統與載貨電梯一樣採用微機或plc控制，拖動系統樣採用vvvf矢量控制，因此，同樣具有安全可靠平穩舒適節能環抱平層精度高的特點。轎廂採用對稱的4根活6根導軌導向，解決了轎廂裝載不平衡引起晃動的問題，降低了運行的噪音。轎門裝有高可靠的光幕保護活紅外線電眼保護，保證汽車安全的進出。
  5. Vvvf door controller frequency converter makes lift door installation easier and more convenient as its control center is the internationally advanced engineering 16 digital micro computer and it operates with the fully digital spwm modulation techniques, with igbt module as the output power drive and with voltage, current and speed under fully digital closed circuit control ( the door controller ' s operation parameters are inputted by means of the keyboard )

    Vvvf控制門機變頻器採用當今國際上先進的工控16位微型計算機為控制核心，採用了全數字spwm調制技術， igbt模塊作輸出功率驅動，電壓、電流、速度全數字閉環控制（門機的運行參數均可通過鍵盤設置輸入） ，從而，使門機的安裝調試更加簡單，方便。
  6. Through the introduction of vvvf theory and the control thought of plc, the mathematic model of test rigs is founded which is run under the mode of electronic simulation, which is the theory foundation for the realization of control system

    通過介紹變頻調速理論和plc的控制思想，建立了試驗臺在電模擬模式運行下的數學模型，為控制系統的實現奠定了理論基礎。
  7. Micro - computer controlled vvvf water - supplying equipment

    微機控制變頻調速給水設備
  8. Mine electrical : integrated automation intelligent switch controller ; mine explosion - proof type intelligent combine switch ; mine power center ; mine vvvf devices ; automation system : mine hoist automation system ; coal preparation plant automation system ; drilling machine control system ; lines of motor vehicles and power leakage protection devices, etc

    礦用電器：綜合自動化智能開關控制器;礦用隔爆智能組合開關;礦用動力中心;礦用變頻調速裝置等;自動化系統：礦井提升機自動化系統;選煤廠自動化系統;鉆井機自動控制系統;架線電機車電源及其漏電保護裝置等。
  9. It is validated that the design of induction machine vvvf control system has its rationality and feasibility. the distinct reduction of switching loss shows the efficiency of the three optimal switching patterns initiated. the research of this paper lays a solid foundation for the research of the high - speed motor control system to be continued

    空載和負載實驗表明文中所提出的感應電機調速方案的正確性和實用性，以及三種優化svpwm開關模式在減少開關損耗等方面的有效性，為后續的高速、超高速電機控制打下了理論和實驗基礎。
  10. Due to the complexity of the structure and control of cycloconverter - type three - phase hf link inverter for soft - switching based on phase - shift - controlled full - bridge mode, a simple and optimized vvvf control strategy is proposed. this control strategy includes : produced pwm by space voltage vector ( svm ) and equivalent carrier frequency fe = 1 / te are introduced into the pdm control of the cycloconverter ; softened equivalent pwm wave is generated at the notches of hf voltage pulses ; the harmonious control between regulating pulse width by phase - shifted angle and regulating voltage of equivalent pwm is to minimize the harmonics content of output voltage of the inverter

    西安理工大學博士學位論文針對這種前級移相全橋軟開關周波變流型三相高頻鏈逆變器結構和控制的復雜性，提出了一種實現簡單而整體優化的vvvf控制策略:將空間電壓矢量產生p姍的方法svm和等效載波頻率fe = 1 / te引入到周波變流器的pdm控制;按高頻電壓脈沖前後沿軟化等效p翎波;用移相調節高頻脈沖寬度和等效p姍調壓協調控制逆變器輸出電壓，在滿足輸出電壓條件下使諧波最小。
  11. On the basis of vvvf theory the electric control system of test rigs is designed, which includes design of main electro - circuit, vvvf control system, plc control system, computer system of collecting signal and data processing and so on

    在變頻調速控制理論基礎上設計了試驗臺的電氣控制系統，包括主電路設計、變頻調速控制系統、 plc控制系統和計算機的信號採集和數據處理系統等。
  12. The question of power waste and sewage overflow in sewage pumping station system is proposed. in order to solve this question, predictive control and vvvf are applied

    本文針對當前污水泵站排放系統存在的耗能多及污水溢出污染的問題，提出了採用預測控制，結合變頻調速的控制手段。
  13. Experimentation of sewage pumping station based on predictive control with vvvf is carried out. the experimentation result shows that the sewage pumping station predictive control system can be running under the condition of high water level. by using this control mode, inflow sewage is pumped out entirely

    在模擬研究基礎上，搭建了模擬試驗系統，在實驗室條件下，對污水泵站排放系統進行了結合變頻調速的預測控制模擬試驗，試驗結果表明，採用預測控制，可以使系統運行在高水位低揚程的工況下，使流入泵站管網的污水等量排出，實現了節能無污的控制目標。
  14. In addition, the system of ac vvvf speed regulation is reviewed and prospected, the basic principle of vvvf and the capacity of motor of the frequency converter are discussed, and the auto - solid storage in department ii in yuxi hongta group is introduced in the thesis

    本文對交流變頻調速系統進行了回顧與展望，簡單論述了變頻調速的基本原理，同時描述了變頻器驅動電機的特性。介紹了玉溪紅塔集團生產二部自動化立體倉庫，重點是對堆跺機提升系統控制策略進行分析研究。
  15. Recently, the vvvf technology became mature with the development of power - electronics

    近年來，由於電力電子技術的發展，交流變頻調速技術已趨成熟。
  16. Study of optimal control method of repmsm ' s vvvf speed system

    稀土永磁同步電動機變頻調速系統最佳控制方案的探討
  17. The elevator has vvvf inverter that can accurately control traction and drive systems ( door drive system )

    精確的控制曳引驅動系統（門驅動系統）的vvvf逆變器。
  18. Our bed elevators incorporate kones mms modular design, original kone control system, 32 - bit networking micro - computer, group - control for 8 elevators, vvvf drive technology and absolute value memorization of cars displacement. timely speed adjusting for the comfortable ride, running steadily, high accurate leveling, soft and warm decorations make our passengers feel human consideration. bed elevator with geared machine performs well and reliably

    引進通力mms模塊化產品技術，原裝進口全套通力控制系統， 32位網路化微機8臺群控vvvf變頻驅動轎廂位移絕對記憶按人體舒適要求實時速度調節，運行平穩舒適，實現幾近零對零的平層精確度，病床進出如履平地柔和溫馨的裝飾，讓乘客倍感無微不至的人文關懷傳統有電梯，經典可靠採用來自通力領先業界的永磁同步技術的小無機房解決方案，節能環保節省建築空間和造價。
  19. The typical technology for ac motor control has vvvf, vsvf, vc and dtc etc. direct torque control ( dtc ) of asynchronous motors, which has been developed in the recent decades, is a power control method for motor drives

    交流電機控制技術具有代表性的有調壓調頻控制、轉差頻率控制、磁場定向控制（矢量控制）以及隨后出現的直接轉矩控制（ dtc ）等。
  20. Water supply with constant pressure and fire control by plc and vvvf

    和變頻調速實現恆壓與消防供水
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